Gas compressor

Abstract

A gas compressor includes a housing configured to house a compressor main body including a rotation shaft, and an electromagnetic clutch including an electromagnetic coil formed annularly around the rotation shaft, wherein a seating surface is formed on the housing and abuts against one end surface of the electromagnetic coil, and at least a portion of the seating surface is formed to extend to an outside of a center radius of the electromagnetic coil in a radial direction.

What is claimed is: 
     
         1 . A gas compressor comprising:
 a housing configured to house a compressor main body including a rotation shaft; and   an electromagnetic clutch including an electromagnetic coil formed annularly around the rotation shaft, wherein   a seating surface is formed on the housing and abuts against one end surface of the electromagnetic coil, and   at least a portion of the seating surface is formed to extend to an outside of a center radius of the electromagnetic coil in a radial direction.   
     
     
         2 . The gas compressor according to  claim 1 , wherein at least three portions of the seating surface around the rotation shaft are formed to extend to the outside of the center radius of the electromagnetic coil in the radial direction. 
     
     
         3 . The gas compressor according to  claim 2 , wherein three portions among the at least three portions are formed at positions surrounding the rotation shaft. 
     
     
         4 . The gas compressor according to  claim 2 , wherein the at least three portions are formed at positions at approximately equal angular intervals around the rotation shaft. 
     
     
         5 . The gas compressor according to  claim 1 , wherein a portion along an entire circumference of the seating surface around the rotation shaft is formed to extend to the outside of the center radius of the electromagnetic coil in the radial direction.